About

Inspired from this 9GAG post:

This app simply calculating the next number with "clear" explanation why it should be the next number. Yeah.

How does it work?

Simple, we can always find a f(x) function that match every number in the given sequence by solving a linear equations: (with n is the number of the number in the sequence)

f(x) = x^n + x^(n-1) + x^(n-2) + ... + x + 1

When we found f(x), we can easily calculate the next number in the sequence. Wow, much solution!

This app uses Gaussian elimination algorithm found here http://martin-thoma.com/solving-linear-equations-with-gaussian-elimination/ with a small modification to make it work with fraction numbers using mathjs library.

Initial dev setup

Make sure you have NodeJS v4.1.1 or above.

npm install 
npm start 

http://localhost:8763 should now be live with Hot Module Replacement.

Production build

npm install 
npm run production 

Production code placed at build

Test

npm test

Coverage report placed in ./coverage/ directory

Other commands

• npm run staging build for staging environment.
• npm lint: linting.